Improvement in revolving fire-arms



0. JUNES.

Revolving Fire Patented June 9,1874.

FIG/.lj

UNITED STATES PATENT OFFICE.

OWEN JONES, OF PHILADELPHIA7 PENNSYLVANIA.

IMPROVEMENT IN REVOLVING FIRE-ARMS.

Specification forming part of Letters Patent No. 151,882, dated June 9,1874; application tiled April 15, 1874.

To all whom it may concern:

Be it known that I, OWEN JoNEs, of the city of Philadelphia,Pennsylvania, have invented an Improvement in Revolving Fire- Arms, ofwhich the following is a specification:

The object of my invention is to use projectiles oi' different sizes inthe same revolver by making the barrel-block with two or more bores ofdifferent calibers, the said block being so connected to the frame thatit can be readily adjusted in the manner explained hereafter.

In the accompanying drawing, Figure 1 is a side view, partly in section,of a revolver with my improvements; Fig. 2, a transverse section on theline l 2; Fig. 3, a transverse section on theline 3 4; and Fig. 4, aperspective View.

The barrel-block A has two bores of different ealibers, and has abreech-pin, a, passing through the cylinder B and projecting into, andarranged to turn in, an orifice iu the frame D, which has twoprojections, b and b', the end of each projection having a lip, e,adapted to a recess, f, in the edge of the barrel-block, as bestobserved in the perspective View, Fig. 4. Each of the projections b andb', has also a spring-catch, h, adapted to a notch, Iz', in each edge ofthe barrel-block.

As seen in Fig. 1, the pistol has been arranged for the use oi'ammunition of small size, the small bore of the barrel-block coincidingwith the small chambers of the cylinder B. When the pistol has to bealtered for the use of larger ammunition, the two springlatches are sodepressed as to remove their outer ends from the notches i, therebyreleasing the barrel-block, which is at liberty to be turned to theposition shown in Fig. 4, when it can be withdrawn with the breechpinfrom the frame, and the cylinder can be removed to make way for one withlarger chambers, after which the barrel-block may be relocked to theframe in a manner which needs no explanation, the said block being ofcourse so adjusted that its large bore shall coincide with the largechambers or the cylinder. It has not been deemed necessary to describethe hammer, lock, or mechanism for operating the cylinder, as theseparts may be similar to those of ordinary revolvers.

In the modification, Fig. 5, the breech-pin is xed to the frame, and aplate, m, at the rear of the barrel-block is hinged at x to the upperprojection b of the frame, a springcatch, n, on the lower projectionserving the twofold purpose of locking the barrel-block laterally to theframe, and of retaining the plate m to which the barrel-block is soconnected through the medium of a central pin, p, that while the saidbarrel-block can be turned freely on the plate it can have no othermovement independent of the same. A projection, q, forming part of thcplate m,

has a lip which projects into a notch on the.

edge of the barrel-block.

WVhen the barrel-block has to be reversed and a new cylinder introduced,the springlatch n is so depressed as to unlock the barrel-block andrelease the plate m, which, with the barrel, can then be turned upward,the block turned laterally on the plate, and a new cylinder introduced,after which the barrelblock may be relocked to the frame.

Although a barrel-block with three or even four dii'erent bores may beused, one with more than two bores will rarely be required. These twobores will demand two cylinders, one of which may be adjusted to thebreechpin, while the other is held in reserve in a recess formed in thestock E of the fire-arm, as shown in Figs. 1 and 4. In revolvingiirearms of a larger class-rifles or carbines, for instance-the stockcan be readily constructed with recesses for the reception of two ormore reserve cylinders having bores of different calibers.

I do not claim, 1sroadly, a fire-arm having.

2. A revolving lire-arm carrying a supplementary cylinder within arecess of the stock E, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specication in thepresence of two subscribing witnesses.

OWEN JONES.

Witnesses WM. A. STEEL, HUBERT HowSoN.

